Download size

How many GB is Book of Adventum?

11 GB

That is more than the typical Adventure game, which needs about 5 GB.

Leave at least 19 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

An action-adventure FPS which combines the time-honored problem solving of adventure FPS games - shooting people in the face and getting through not-so-difficult puzzles - with metaphysical ponderings. You can craft and mod stuff as well.